| Season 1 | Episode 1 | Katrielle and the Mysterious House | 2018-04-08 | 25 min |
| Season 1 | Episode 2 | Katrielle and the Devil's Dress | 2018-04-15 | 25 min |
| Season 1 | Episode 3 | Katrielle and the Resurrected Corpses | 2018-04-22 | 25 min |
| Season 1 | Episode 4 | Katrielle and the Phantom Thief of the Century | 2018-04-29 | 25 min |
| Season 1 | Episode 5 | Katrielle and the Lucky Man | 2018-05-06 | 25 min |
| Season 1 | Episode 6 | The Bus that Leapt Through Time | 2018-05-13 | 25 min |
| Season 1 | Episode 7 | Ratman Returns | 2018-05-20 | 25 min |
| Season 1 | Episode 8 | The 100 Million Pounds that Left with the Wind | 2018-05-27 | 25 min |
| Season 1 | Episode 9 | Cat-colored Skyscrapers | 2018-06-03 | 25 min |
| Season 1 | Episode 10 | Professor Layton and the Relics Treasure: Episode 1 | 2018-06-10 | 25 min |
| Season 1 | Episode 11 | Mystery at New Cinema Paradise | 2018-06-17 | 25 min |
| Season 1 | Episode 12 | Aspoirot and London's Holiday | 2018-06-24 | 25 min |
| Season 1 | Episode 13 | Katrielle and the Doppelgänger | 2018-07-01 | 25 min |
| Season 1 | Episode 14 | Genius Analyst Officer Geraldine Royer | 2018-07-08 | 25 min |
| Season 1 | Episode 15 | Katrielle and the Mystery Circles | 2018-07-15 | 25 min |
| Season 1 | Episode 16 | Katrielle and the Pandas' March | 2018-07-22 | 25 min |
| Season 1 | Episode 17 | Katrielle and the Monster of London | 2018-07-29 | 25 min |
| Season 1 | Episode 18 | Molentary Express and Three Incidents | 2018-08-05 | 25 min |
| Season 1 | Episode 19 | The Lonely Ghost | 2018-08-12 | 25 min |
| Season 1 | Episode 20 | Professor Layton and the Relics Treasure: Episode 2 | 2018-08-19 | 25 min |
| Season 1 | Episode 21 | Katrielle and the Sweet-Scented Street Labyrinth | 2018-08-26 | 25 min |
| Season 1 | Episode 22 | Ultra-High Performance Robot Socketman | 2018-09-02 | 25 min |
| Season 1 | Episode 23 | Katrielle and the Great Office Infiltration Strategy | 2018-09-16 | 25 min |
| Season 1 | Episode 24 | The Clockwork Sweets | 2018-09-23 | 25 min |
| Season 1 | Episode 25 | A Riverside Festival Love Story | 2018-09-30 | 25 min |
| Season 1 | Episode 26 | The Diary of Noah | 2018-10-07 | 25 min |
| Season 1 | Episode 27 | Fugitive Katri | 2018-10-14 | 25 min |
| Season 1 | Episode 28 | The Goddess of the Thames Smiles Twice | 2018-10-21 | 25 min |
| Season 1 | Episode 29 | Katrielle and the Nessie of Loch Nem | 2018-10-28 | 25 min |
| Season 1 | Episode 30 | Katrielle and the Immortal Vampire | 2018-11-04 | 25 min |
| Season 1 | Episode 31 | Katrielle and the Witch Wife | 2018-11-11 | 25 min |
| Season 1 | Episode 32 | Katrielle and the Prince of the Stars | 2018-11-18 | 25 min |
| Season 1 | Episode 33 | Katrielle and the Murder on the Spaceship Bengarian | 2018-11-25 | 25 min |
| Season 1 | Episode 34 | Professor Layton and the Relics Treasure: Episode 3 | 2018-12-02 | 25 min |
| Season 1 | Episode 35 | Professor Layton and the Relics Treasure: Episode 4 | 2018-12-09 | 25 min |
| Season 1 | Episode 36 | The Cursed London Collection | 2018-12-16 | 25 min |
| Season 1 | Episode 37 | Mintan's New Ambition | 2018-12-23 | 25 min |
| Season 1 | Episode 38 | The Scotland Yard Bayside Shakedown | 2019-01-06 | 25 min |
| Season 1 | Episode 39 | Katrielle and the Transparent Baby | 2019-01-13 | 25 min |
| Season 1 | Episode 40 | Geraldine Royer and the Final Customer | 2019-01-20 | 25 min |
| Season 1 | Episode 41 | Katrielle and the Strange Spirit Photo | 2019-01-27 | 25 min |
| Season 1 | Episode 42 | Great Detective Sherlo Ckholmes | 2019-02-03 | 25 min |
| Season 1 | Episode 43 | Katrielle and Horror Castle VR | 2019-02-10 | 25 min |
| Season 1 | Episode 44 | Katrielle and the Superman Chef | 2019-02-17 | 25 min |
| Season 1 | Episode 45 | Katrielle and the Ghost Club | 2019-02-24 | 25 min |
| Season 1 | Episode 46 | Katrielle and the Hundred Faces of Mona Lisa | 2019-03-03 | 25 min |
| Season 1 | Episode 47 | The Millionaire Ariadne's Conspiracy (Part 1) | 2019-03-10 | 25 min |
| Season 1 | Episode 48 | The Millionaire Ariadne's Conspiracy (Part 2) | 2019-03-17 | 25 min |
| Season 1 | Episode 49 | Professor Layton and the Relics Treasure: Episode 5 | 2019-03-24 | 25 min |
| Season 1 | Episode 50 | Professor Layton and the Relics Treasure: Final Episode | 2019-03-31 | 25 min |
